STRUCTURAL ENGINEERING
Kavanagh Lecture - Abstract
April 6, 2000
Research Basis for Technological Development in Precast Post-Tensioned
Segmental Concrete Bridges
by
Dr. John E. Breen
Nassar I. Al-Rashid Chair in Civil Engineering
The University of Texas at Austin
ABSTRACT
The last 30 years have seen the emergence of precast post-tensioned concrete segmentally constructed box girder bridges from a rare novelty to a major competitive force in bridge construction in the United States. Throughout this period the Ferguson Structural Engineering Laboratory of The University of Texas has been continuously engaged in both laboratory and field instrumentation research and development programs in many areas of design and construction for this type bridge under a variety of sponsors. Much of this research has provided the background for the comprehensive AASHTO Guide Specification for Segmental Concrete Bridges. This presentation will summarize key research and development findings and illustrate their application in design and construction of a number of interesting bridges.
